Bot. [ad. mod.L. epigonium, f. Gr. ἐπί upon + γονή, γόνος seed.] The membranous bag or flask that encloses the spore-case of a liverwort or scale-moss when young. Also the nucule of a Chara.

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1866.  in Treas. Bot.

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1870.  Bentley, Bot., 367. The case of the archegonium is called the epigone.

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